Legend of the Demon Cat is adapted from Shamon Kukai Tou no kuni nite oni to utage su, a novel written by the famous Japanese writer Yumemakura Baku. It tells a story in Tang Dynasty (around 850 AD) about a Chinese poet and a Japanese monk investigating into the mysterious death of Concubine Yang, the most beautiful Concubine in Chinese history, following the lead of several strange events made by a demon cat. (Source: Emperor Motion Pictures)